Biology 3rd Edition by Peter Russell, Paul Hertz, Beverly McMillan

Exercise 9

Which of the following statements about inhibition is true?
A)Allosteric inhibitors and allosteric activators are competitive for a given enzyme.
B)If an inhibitor binds the active site, it is considered noncompetitive.
C)If an inhibitor binds to a site other than the active site, this is competitive inhibition.
D)noncompetitive inhibitor is believed to change the shape of the enzyme, making its active site inoperable.
E)Competitive inhibition is usually not reversible.